Add Multiple Select field / attribute to filter in Magento

 


Using addAttributeToFilter() with a multi-select attribute:

$this->_productCollection->addAttributeToFilter("stv_school", array("finset" => $allowedSchool);

OR

$allowedSchools = array(
  array(
    "finset" => array(348)
  ),
  array(
    "finset" => array(350)
  ),
);$this->_productCollection->addAttributeToFilter("stv_school", $allowedSchools);

Reference URLs:

http://www.magentocommerce.com/boards/viewthread/201312/
http://www.magentocommerce.com/wiki/1_-_installation_and_configuration/using_collections_in_magento